2014-04-16 9:14 GMT+02:00 Roger Pau Monne roger.pau@citrix.com:
On FreeBSD, the name of the emulation is "-melf_i386_fbsd", so allow SeaBIOS to fetch the emulation to use from the environment variables.
This allows SeaBIOS to compile on FreeBSD with gcc.
+LD32BIT_FLAG:=-melf_i386
That will not work, see below for proof.
With your patch applied, on FreeBSD 10.0-RELEASE and gcc 4.7.3 installed from ports:
Building ld scripts ./scripts/buildversion.sh out/version.c Version: rel-1.7.4-86-g028f348-dirty-20140416_140430-machete gcc -Iout/ -Isrc -Os -MD -g -Wall -Wno-strict-aliasing -Wold-style-definition -Wtype-limits -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 -minline-all-stringops -freg-struct-return -ffreestanding -fno-delete-null-pointer-checks -ffunction-sections -fdata-sections -fno-common -fno-stack-protector -DMODE16=0 -DMODESEGMENT=0 -fomit-frame-pointer -c out/version.c -o out/version.o ld -melf_i386 -r out/ccode32flat.o out/version.o -o out/code32flat.o ld: unrecognised emulation mode: elf_i386 Supported emulations: elf_x86_64_fbsd elf_i386_fbsd gmake: *** [out/romlayout16.lds] Error 1
With 'LD32BIT_FLAG:=-melf_i386_fbsd':
Building ld scripts ./scripts/buildversion.sh out/version.c Version: rel-1.7.4-86-g028f348-dirty-20140416_140652-machete gcc -Iout/ -Isrc -Os -MD -g -Wall -Wno-strict-aliasing -Wold-style-definition -Wtype-limits -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 -minline-all-stringops -freg-struct-return -ffreestanding -fno-delete-null-pointer-checks -ffunction-sections -fdata-sections -fno-common -fno-stack-protector -DMODE16=0 -DMODESEGMENT=0 -fomit-frame-pointer -c out/version.c -o out/version.o ld -melf_i386_fbsd -r out/ccode32flat.o out/version.o -o out/code32flat.o ld -melf_i386_fbsd -r out/ccode16.o out/romlayout.o -o out/code16.o
And:
$ gcc47 -dumpspecs | grep elf_i386 %{!static:--eh-frame-hdr} %{m32:-m elf_i386_fbsd} %{p:%nconsider using '-pg' instead of '-p' with gprof(1)} %{v:-V} %{assert*} %{R*} %{rpath*} %{defsym*} %{shared:-Bshareable %{h*} %{soname*}} %{!shared: %{!static: %{rdynamic:-export-dynamic} -dynamic-linker %(fbsd_dynamic_linker) } %{static:-Bstatic}} %{symbolic:-Bsymbolic}